wheels: use sm_75-virtual PTX so T4 can JIT-compile#294
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sm_90 PTX is forward-compatible only — sm_75 (T4) can't JIT it. Change to 75-virtual: T4 JITs from sm_75 PTX, A100 uses sm_80 SASS, H100 JITs from sm_75 PTX (forward-compatible).
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sm_90 PTX is forward-compatible only — sm_75 (T4) can't JIT it. Change to 75-virtual: T4 JITs from sm_75 PTX, A100 uses sm_80 SASS, H100 JITs from sm_75 PTX (forward-compatible).